Fountain-dividing equipment for multicolor presswork.



R. H. DUNNET.

FOUNTAIN DlVlDlNG EQUIPMENT FOR MULTICOLOR PRESSWORK. APPLICATION HFED AUG.Z1. 1914.

1,165,160. Patented Dec.21,1915.

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FOUNTAIN DIVIDING EQUIPMENT FOR MULTiCOLOR PRESSWORK.

APPLICATION FILED AUG.2I, 1914.

1,165,1 66.. Patented Dec. 21, 191.5.

2 SHEETSSHEET 2.

ROBERT HpDUNNET, F BROOKLYN, NEW YORK.

FOUNTAIN-DIVIDING EQUIPMENT FOR MULTICOLOR PRESSWORK.

Specification of Letters Patent.

Patented Dec. 21, 1915.

Application filed August 21, 19141. Serial No. 857,846.

To all/whom it may concern:

Be-it known thati I, ROBERT H. DUNNE1', a citizen of the United-States, and a resident of Brooklyn, in the county of Kings and State of New Yorln-have invented certain new and useful,Improvementsin Fountain- Dividing Equipment for Multicolor Presswork, of which the following is a specification.

This invention relates to fountain dividing equipment for multi-color press work.

In'printing multi-color work, it isnecessary to divide the fountain into compartments which aresupplied with the different colored inks. The present invention-contemplates to provide fountain dividing means having an accurate fit for effectually preventing the mixing of the difierent colored inks constituting one object of the present invention. 1

Another object isto provide fountain dividing apparatus which is durable and efficient.

The various further objects and tages will more fully appear from the detailed. description and the features 'of "novelty will be particularly pointed out in the claims.

In the drawings illustrating the invention,

Figurel is a fragmental perspective view of a fountain and ink distrlbutlng rollers of a printing press showing my improved fountain dividing means applied thereto. Fig. 2 is a cross sectional view through the fountain and inkdistributing roller, showing the fountain dividing means on an. enlarged scale; Fig. 3 is a section taken along line 3-3 of Fig. 2.- Fig. 4 is a fragmental perspective view illustrating the grooved formation of'the forward and bottom edges of the dividing wall. Fig. 5 is asectionalview 1 ticularly to Figs. 1, 2, 3 and 4, the fountain 10 from which the ink is taken by thexdisadvansnugly against the roller.

tributing rollers l1 is divided into a number of compartments 12, 13,141, etc, by a number of dividers 15, which are adj ustablv held in position to secure a snug fit with the bottomof the fountaiuand with the ad jacent roller.- To secure this snug fit so as to prevent the inks of different colors used lnthe various compartments from intermixing, I form the dividing wall or blade 15 of some slightly compressible, wear resisting, non-fragile material such as fiberboard and the like and cut the same so as to properly fit the bottom of the fountain and the adjacent distributing roller. Preferably the bottom edge-16 of the divider blade is formed with a central groove 17 which permits a more perfect fit with the fountain and serves to more effectuallyprevent the in termixing of the adjacent inks. Also the forward edge 18 of the divider blade fitting against the roller is grooved at 19 preferably a part of the way up soasto terminate below the top edge 20.

To firmly clamp the blade in. position, I provide an overturned hook. shaped clamp 21 consisting of a bar having a top portion 22 which engages the top edge'of the blade and the inbent bottom portion 23'enga-ging the bottom of the. fountain and clamped thereto by a suitable thumb screw 26L threaded through the inturned portion 23. hen the thumb screw is tightened against the bottom of the trough or fountain, the topportion 22 of the clamp bears downward at its entire length upon the blade 15 and holds the same in snug engagement with the bottom of the fountain. At the same time,

; owing to the inclination of the trough o1- fountain, as clearly appears from Flg. 3, a

component of the downward clamping force arises 1n a directlon parallel to the bottom of the trough, thus tending to hold the blade If desired, the bottom of the portion 22 of the clamp may be grooved as at 25 to receive the top edge of the blade so as tomore securely hold the same from displacement. In some cases, I prefer to still further increase the snugness of the fit between the bottom edge of the blade and the fountain. Forthis purpose, I attach, in any suitable manner, strips of leather 26 or other suitable compressible material unaffected by ink, to the divided bottom edge of the blade. The compressible material acts upon the tightening of the clamp to fill in anyslight inequalitiesincfit which may arise between the bottom edge of the blade and the trough. in the modified form'illustrated in Figs.

ta zen by the distributing rollers 31 isfdivided. by the blades which may be also or fiber 'or some other suitable material as V hereinbefore stated in connection with the first form described. The blade is held snugly in ad usted position by" a screw 33 threaded in a frame 34 countersunk in a re-' cessiformed in the blade. This frame is preferably formed with the bosses 35 into which the'screw is threaded. .The recesses Z-ifiand 87 m 1 r l 'th 'l f I ay oe io mec on e1 el slce 0 the frame for the passage of the screw. For ad ustingthe screw so as to apply pressure to the blade, the screw is formed with a square portion'within the frame which may he engaged by a tool to turn the screw within the threaded bosses. Theexterior end of the screw is provided with an abutment through ahead 38 mounted upon the exterior end of the screw and suitably swiveled thereon. fThis head may'be'formed with serrations" which engage the inner ser screw is inclined downward. Ipreferably" employ inclined screw adjustment so as to provide a component tending to press the blade downward as well as inward toward the roller. Ihis component is further increased by the'wedging action secured between the fountain and the roller at the bottom portion of the blade. In accordance with the inclination of thescrew, the serrated surface 39 of the bar l0 may be also inclined so as to properly engage the head 38.

In the modified construction illustrated in Figs. 9 and 10, the bar 45 corresponding to the bar l-O in Figs. 5 and 8, is formed with the circular recesses 46 whlch'may engage a' similarly formed head on' the screw. In some instances, th s construction may be cheaper to make than the serrated surface previously described.

It will be understood that various modifications may be resorted to within the scope of the invention without departing from the claims. V

Having thus described my invention, I claim as new and desire to secure by Letters Patent: Y

the fountain 30 fromwhich the ink is 1.1a fountain dividing apparatus for multi-color press work, apartition wall of non-fragile non-metallic material, a clamp having a longitudinal groove 1n which said Wallis inserted and provided with an m- ,turned portion adapted'to pass underneath of the fountain of the press, and adjustable means provided on said inturned portion for clamping the Wall to the fountain.

2. In fountain dividing apparatus for ,multi-colorpress Work, a partition wall of non-fragile, non-metallic, slightly compressible, wear resisting material formed with a groove at the bottom edge thereof, and V 3. In fountain dividing apparatus for non-fragile non-metallic material extending across substantially the whole width of the fountain, a lining'of compressible material at the bottom edge of the wall and a clamp engaging substantially the entire length of r the top of the wall and engaging also the bottom of the fountain for clamping the wall in position.

t. In fountain dividing apparatus for multi-color press work, a blade formed of wear resisting, non-metallic material, and a metalclamp consisting of a hooked bar removably engaging the top of the blade andpassing underneath the fountain for clamping the blade in position.

5. In 1 fountain dividing multi-color press work, a wear. resisting,

non-metallic partition wall, and a separate clamp therefor comprising a hooked :member removably engaging the top of the wall and the bottom of the fountain, and means passing through the portion underneath the fountain and engaging the bottom of the fountain to hold the clamp firmly :against the wall.

apparatus for removable means engaging substantiallythe entire top edge of-= the partition wall'for' clamping the wall in position: 1

multi-colorpress work, apartition wall of 6. In fountaindividingapparatus for multi-color press work, a partitionwall, and

a separate clamp therefor comprlsmg a hooked bar havmg a grooved portion in which the top of the wall is removably held,

said bar'al'so engaging the bottom of the fountain, and means passlng' through theportion underneath the fountain andengaging the bottom of the fountain to hold the clamp firmly against the wall.

Signed atNew York inthe county of New. York and State of New York day of August A. D. 1914.

Bonner innvivnr.v W itnesses i M. LESSIN, WM. I. COHEN.

Copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents,

Washington, D. G.

this-12th 

